Elastic-fluid turbine.



0. W. BAKE.

BLASTIG FLUID TURBINE. APPLICATION FILED NOV. 29, 1905. RENBWBD SEPT. 8.1906. l

PATENTED MAR. 26. 1907.

v n 5 SHEBTSAHBET 1. l

Arron/va' S PATENTED MAR. 26, 1907. Y o; W. BAKE. y f ELASTIC FLUID TURBINB.. APPLICATION FILED NOV. 2\ 9l905. 4RENEWED SEPT. 8.11906.

5 SHEETS-SHEET ze.-

PATBNTBD MAmze, 1901.

" o. W. BAKE. i

-BLASTIG FLUID TURBINE.

APPLICATION FILED NOV. 29, 1905. RENEWED SEPT. 8.1906.4 A y l 5 SHEETS-SHEET 3.

a .bwa

WITNESSES:

No. 848,588. PATENTED MAR. 26, 1907.

G. W. DAKE.

ELASTIG FLUID TURBINE.

APPLIOATION FILED Nov. ze, 1905. RBNEWED SEPT, 3.1906.

` l 5 SHEETS-SHEET 5,

UNITED STATES PATENT OFFICE.

CHARLES W. DAKE, GRAND RAPIDS', MICHIGAN.

ELAsTlo-FLUID TURBINE..

f atenteo. March 26, 1907.

Ap plicationled November 29, 1905. Renewed September 8, 1905. ,Serial No. 333.778.

5 of Michigan, have invented certain new and useful Improvements in Elastic-Fluid Turb ines, of which the following is a specification.

This invention relates to improvements in elastic-fluid turbines. Y The objects of. this invention are, first, to provide an' improved and simplified con.- struction of such turbines in large sizes; sec-- ond, to provide an improved means of compounding in a large-sized elastic-huid turbine-engine; third, to provide an improved arrangement for preventing the warping of the turbine-wheels of large-sized turbines ofthe Y horizontal type fourth, to provide an improved construction of casing whereby the various parts of the Amain casing are 'made accessible, and, fifth, to provide an improved construction of turbine base or foundation, whereby the bearing parts are made conveniently accessible to the engineer.

Further objects and objects relating to the details of construction will definitely appear from' the detailed description tofollow.

` I accomplish the objects of my invention. by the devices and means described inthe.

following specification. j

The invention is clearlydefined and. pointed out in the claims. y

A vstructure embod ing thefeatures of my invention is clearly illustrated .in 'the accompanying p' drawings, ,forming a part of this speoiication, in which-' Figure lis an elevation view of my improved turbine, portions thereof being shown invertical central section. Fig. 2 is an elevation view from the right of Fig. 1, showing the removable ring-casing raised to expose- 4 the skeleton frame, showln .how the internal.

parts of the turbine are ma e accessible. Fig. 3 is an'enlarged detail sectional view throu h one of the nozzlev and vguide-passage bloc s and. adjacent parts, taken on a line :t of Fig.

f 5, showing the wheels in position, the several guide-passages registering with the `buckets larged sectionalview of the nozzle andguideass'ageblocks,-v taken onirregular line z z of 5 52,' ig. 5,'portionof the-casingy also beingill-usf "trated- Fig. is an enlarged detailseetdipnal .for passing the fluid from one row of buckets` view of the nozzle and guide-passage block 5, taken on section-line y y of Fig. 3 lookin down. Fig. 6 is an enlarged `detail sectiona View of the nozzle and guide-passage blocks and adjacent parts, taken on line s s of Fig. 5. Fig. 7 is a detail view of the lower side of the wheel 8, showing `the arrangement of the plate 53. for supporting the wheel-disk 1, 8 against sagging at its rim or assuming a saucer shape and also showing the segmental formation of the buckets.l Fig. 8 is an enlarged sectional view of the nozzle and guidepassage block 5, taken on line A A of Fig. 5, showing the guide-passage 4.2 and-Fig. 9 is an enlarged view of the nozzle and guide-passage block 5, taken on line B B of Fig. 5,

passage '1..

` In the drawings similar numerals of reference refer to similaruparts throughout the several views.

Referring to the numbered parts of the drawings, the casing, consistingof the removable partY 1, whichembraces and'protects the skeleton frame 2, is supported on a suitable base 3. The top 4 of the casingrests upon the skeleton frame 2 and will in ordinary use of this turbine be used to sup ort an electrical genetor. Within the s eleton frame 2 is the nozzle or guide-passage block 5, resting on its support 6, to the under side of which nozzle-block su port is secured the second nozzle and gui e-passage block v 7..l l'The disk-wheels 8 and 9 are carried by the central vertical shaft 11. A diaphragm or head 10 incloses the under side of the wheelcasing and rests u on a flange 56 of the base 3.

The vertical 's aft 11 supports the turbine-wheels 8 and 9. `with a suitable step-bearing 12, which carries .95` This shaft is provided a tapered bearing-bushing 13, supported by.

the bearing-bushing casing 141. A threaded nut or collar 15 is screw-threaded onto the 'I OO upper end of the tapered bearing-bushing 13.'

This bushing is spht, so that when the nut is turned on it itis adjustable to the shaft t0 compensate for wear and to bring it intel proper contact with the shaft 11 to secure the bestresults.

The step-bearingl2 is supported on a boss v 27 on the shelf '57,' the edge o which shows at 58; This shelf is supported and strengthened 'l bythe radial ribs 70, 71, 72, and 73.

A bearing-bushing 18 is arranged around the upperend of the shaft., This is carried shaft 11 and forming a receptacle to catch the drip from the bearing.

A stuffing-box consisting of parts 21 and 22 surrounds the shaft 11 and forms a joint between it and the top plate or top head of the casing. Asecond stuling-box, consisting of the parts 25 and 26, forms a joint between the bottom plate and the diaphragm or head 10 and the shaft.

A spacing-collar 24 is between the hubs of the turbine-wheels 8 and 9, and these are clamped together byA a jam-nut 23, which locks the wheels securely together on the shaft. i

The outer removable casing 1 is provided with a iiange 29, which rests upon the skele-` ton ame 2 and is secured thereto by bolts or cap-screws 66. Eyebolts 2S afford means for lifting or elevating the removable casing v1t A iiange 30 is at the bottom of this casing, fitting onto-a suitable projectiony at the bottom ot the skeleton frame 2 and forming a steam-tight joint at both of these points.

.The skeleton frame has openings 31 through its periphery, through which the operative parts ci the turbine are made accessible, each ol these openings preferably embracing one of the nozzle and guide-passage blocks and their supports.

The elastic fluid enters the engine through a passage 83, a ilange 34 being around the same. An annular passage 35 extends entirely fluid to the various nozzle-sections. passages to the nozzle-sections are controlled and governed by Va regulating-valve 62;l Regulating means Jfor this valve is in the valve-chest 60, the'elastic liuid being supplied thereto through the p'ipes 61.

63,is a passage from the passage 35 to the expansion-chamber 36 'of each nozzle-section, the regulating-valve 62 controlling this passage 63 by suitable regulating means, t-he operation of which I have referred'to in a general way.

The base 3 is linished at the top, and 'on this is placed the nozzle and guide-passage block 7, the expansion chamber of each nozzle-section connecting to a passagef37. 'A spacing-block 6 rests upon the block 7 Iand .supports upon its upper surface .the upper nozzle and guide-passage block 5. The passages through these blocks 5, 6, and 7, briefly in ica-ted, are from the expansion chamber 86, through the passage 37 in the biock 7, through the passage 38 in the block 6, through the passage 39 in the block 5, to the where they around the engine and conveys the y The Anozzle-passage 40, thence to the buckets 4l,

thence through the guide-passage 42 to the buckets 41, and thence through the guidingpassage 42 to the opposite buckets 41, thence to the guide-passage 42, repeating as often as desired, advancing at each circuit and eventually passing through the exit-passage 1,', thence through the passage 43 in the block 6 to the nozzle 44 of the lower block 7, thence to the buckets 45,- thence through the passage 46 to the buckets 47, thence through lthe passage 46 vand buckets 47 as often as desired, thence out through the exit-passage 49rleading to the exhaust-chamber 50, which connects by passages 51 and 52 into the exhaust-pipe 32.

The buckets are segmental, as appears in F ig. 7, the segments of the buckets being indicated by the numeral 41, and are of the same form and construction as appeai` in my application for patent concurrent herewith, are specifically claimed, they being cut into the innersides of the segments which are on the opposite sides of the wheeldisks in diverging angles, so that the circulation of the steam or elastic .Huid therethrough propels the wheel in the same direction wherever thek isteam is delivered to it, the particular form of the buckets 41, 41', 45, nfnd 47not being material to the invention :set forth in this application, this invention having to do more particularly, among other "things, with the arrangement of the passages For delivering the elastic fluid thereto, so far as the nozzles, passages, and buckets are concerned. The bucket-sections are retained on the web of the turbine-wheels by means described and claimed also in an application concurrent herewith.

On the diaphragm or head 10 is a flange 55, extending up into proximity to the under side of the wheel-disk 9 out toward the buckets and forming an annular receptacle 67 for receiving the slight amount of condensation that occurs at that point, drainageapertures being in the chambers to draw ol'tthe liquid. An annular liange 68 is on the upper top plate and fits just within the'segmental buckets at that point, serving `to retain the steam in the outer part of the wheel and prevent its working inwardly toward the bearings, and consequently preventing the unnecessary heating of the bearings. The steam, however, enters around the various parts and serves to keep them evenly heated, and thus prevents any tendency to distortion.

On the underside of the turbine-Wheel disks 8 and 9 are formed shoulders 69, against which the edge of sheet-metal lates 53 and 54 rest, such plates being dish-shape d and concave on their up er sides, their peri heries resting a ainst t e supporting col ars or lfianges on t e shaft 11, ereby insuring IOO IIOv

poses ecifiedI 'between the said nozzle and guide-passage base-section 3 containing exhaust-chamber and passages, the skeleton frame 2 resting thereon, and the detachable ring-casing 1 embracing the skeleton casing, adapted to be -detached and elevated therefrom; and a separate casing or frame 4 resting on the skeleton frame.

2. Ina turbine-engine, the combination of the casing consisting of a base part, a skeleton-frame part, and anouter detachable rin portion adapted to be separate therefrom; a central vertical shaft supported on a stepbearing; a pair of turbine-Wheels secured to said shaft; sup orting dish-shaped plates under the said W eels and engaglng a suitable annular shoulder thereon to prevent contortion therein; suitable buckets on the peri heries of said wheels and nozzles for delivering the elastic fluid thereto, coacting for the pur- 3. n an elastic-fluid turbine, the combinationof a base-section; avertical .shaft suitably arranged in the center thereof with a pair of turbine-wheels with buckets on their peripheries; a series of nozzle and guide-passage blocks supported within the buckets of sa1d turbine-wheels; and separator-blocks blocks for supporting them in proper position and provided with proper passages for suitably connecting the same together, coacting for the purpose specified. 4-

4. In an elastic-fluid turbine, the combination of the casing and support consisting-of base-section 3 containing the exhaust charnber and passage, the skeleton frame 2 resting thereon, and the detachable ring-casing 1, embracing the skeleton casing,radapted to be detached and elevated therefrom.

5. In an elastic-fluid Vturbi11e-engine; the combination of a suitable base; a vertical shaft arranged. centrally therein and supportedvin a suitable step-bearing, the base'3 supporting said bearing and being provided Withan annular inlet-.chamber 35, with suit-- able inlet-passages 63 therefrom to the different nozzle-sections; governing-valves and 61 for controlling the said nozzles 1n the exhaust-chamber in said base; a lower head. 10

' ity for the turbine-Wheel casing, supported on a flange 56 thereof and rovided with a suitable stulIing-box at t e center to embrace the said vertical shaft, and provided with an annular flange 55 extending up into proximwith the lower surface of the lower turbine-wheel adjacentto the bucket-sections; turbine-wheels SJandQ-secured to the sai d lsegments suitably secured tothe Webs of said turbine-Wheels guide-passage blocks 5 and 7 extending inwardly between the oppositelyfaced bucket-segments on each wheel with a spacer-block 6 between the same, containing passages 36, 37 38, 39 and 40, delivering into the buckets 47 of the lower bucket-segments of the u per wheel 8, and a passage 42 in the guide-b ock 5 leading from the inner side of vsaid, bucket 41 to the inner side of the said bucket 4g', and thence through the said guide-block 5 to the guide-passage 42 from the outer side of the buckets 41 to the outer side of bucket 41; an exit-passage 1 in said guide-block 5 in advance of the in let-passages 39 connecting to a passage 43 through the spacer-block 6; a nozzleassage 44 delivering thence through guidelock 7 to the outer' `side of the buckets 45; a passage 46 through the said guide-block 7 to the Iinner side' of the upperbucket 47; a passage 48 to connect the outer periphery of the said upper buckets 47 to the exhaust-chamber 5() an upper skeleton casing 2 extendin to form the upper head of the turbine-cham er, with a stuffing-box at its center to embrace, the vertical shaft and an annular ilange68 in proximity to the upper side of the wheel 8 just within the bucket-- segments 'and also providedwith openings IOOA casing 2 to forma base for supporting a dynamo or other machinery above; a'nd suitable adjustable bearings at the center ofsaid shaft, all coacting substantially as described and for the purpose specified.

6. In an elastic-fluid turbine-engine, the combination of a suitable base; .a vertical shaft arranged centrally `therein and sup-4 ported in a suitable step-bearing, the base 3 sup Y orting said bearin and being provided wit an annular inlet-e amber 35, with suitable inlet-passages 6 3 therefrom 'to the different nozzle-sections; governing-valves 60 and 61 for controlling the said nozzles," in the exhaust-chamber in said base; a lower head 10 for the turbine-wheel casing, supported on a flange 56 thereof and provided with a suitable stuffing-box at the center to embrace the said vertical shaft, and provided with an annular flange 55 extending up into proximity with the lower surface of the low'er turbinewheel adjacent to the bucket-sect1' rns; .tur-y bine-wheels 8 and 9 secured to the 's Ld vertical shaft, and provided Withanlfannular flange 55 extending up into p roxlmty with the ower surface of the lower turbine-wheel adjacent to the `bucket-sections;turbine-4-f1" .wheels 8 and 9 secured,.tof,the' said-vertical -sitely-faced buckets7 and a spacer-block 6l shaft by suitable hubs and arranged one above the other; oppositely-faced .bucketsegments suitably secured to the webs of said turbine-wheels; guide-passage blocks and and also provided with openings- 31 to permit` access to the guide-blocks, separator-block and turbine-buckets va ring-casing 1 flanged at its upper a"nd lower side to lit onto the casing 2, with means for elevating the same, to

' make the said skeleton casing` 2 accessible; a casing 4 resting on top of said casing 2 to form a base for supporting a dynamo or other machinery above; and adjustable bearings at the center of said shaft, all ccacting substantially as described and for the purpose specified.

7. In an elastic-fluid turbine-engine, the combination of a suitable base a vertical shaft arranged centrally therein and supported in a suitable step-bearing, the base 3 O; and being provided with an annular inlet-chamber 35, with suitable inlet-passages 63 therefrom to the (liderent nozzle-sections; governing-valves and,

61 for controlling the said. nozzles in the exhaust-chamber in said base a lower head 10 for the turbine-wheel casing, supported on a flange 56 thereof and provided with a suitable stufling-box at the center to embrace the said vertical shaft, and provided with an ani nular flange 55 extending up into proximity with 'the lower surface of the lower turbinewheel adjacent to the bucket-sections; turbine-wheels 8 and 9 secured to the said verti- -cal shaft by suitable hubs-and arranged one l ing .1 flanged at its upper and lower side to lit l above the other; oppositely-faced bucketsegments suitablyl secured to the webs of said turbine-wheels 'guide-blocks arranged to deliver steam successively lto the said oppositely-faced buckets; an upper skeleton casing 2 extending to form the upper head of the turbiile-chamber,.` with a stufling-box at its center to embrace the vertical shaft and an annular flange 68 in proximity Y side of the wheel"8 just within the bucketsegments and also provided with openings 31 to permit access to the guide-blocks, separator-block'and turbine-buckets.; a ring-casonto the, casing 2, with means for elevating the same to make the said skeleton 'casing 2 .casing 2te form a accessible; a casi 4 resting on top of said ase for supporting adyto the upper namo or other machinery above; and suitable adjustable bearings at the center of said shaft, all coacting substantially as described and for the purpose specified.

8. ln an elastic-fluid turbine-engine, the combination of a suitable base; a vertical shaft arranged centrally therein and supported in a suitable step-bearing, the base 3 supporting said bearing and being provided with an inlet-chamber 35, with a suitable inlet-passage 63 therefrom to the nozzle; a governing-valve for controlling the said noz- Zle in the exhaust-chamber in said base; a lower head 10 for the turbine-wheel casing, supported on a flange 56 thereof and provided with a 'suitable stuffing-box at the center to embrace the said vertical shaft,- and provided with an annular 'flange 55 extending up into proximity with the lower surface of the lower turbine-wheel adjacent to the bucket-sections; turbine-wheels S and 9 secured to the 'said vertical shaft by suitable hubs and arranged one above the other; oppositely-faccd bucket segments suitably secured to the webs of said turbine-wheels; guide-passage blocks 5 and 7 extending inwardly between the oppositelyfaced bucketsegments on each wheel with a spacer-block 6 between thesame, containing passages 36, 37, 33, 39 and 40, delivering into the buckets 41 of the lower-bucket-segments of the u per wheel 3, and a passage 42 in the guide-'b ock 5 leading from the inner side of the said bucket 41 vto the innerside of the said bucket 41 and thence throughY the said guide-block 5 to a guide-passage 42 from the outer side of bucket 41 to the outer side of bucket 41, and an exit-passage 1 in said guide-block 5 in advance of the inlet-passages 39 connecting to a passage 43 through the spacer-block 6, and a nozzle-passage 44 delivering thence through guide-block 7 to the outer side of the buckets 45, and a passage 46 through the lsaid guide-block 7 to the inner side of the upper bucket 47, and a passage 43 to connect the outer periphery of the said. upper buckets 47 to vthe exhaust-chamber 50; an upper skeleton casing 2 extending to form the upper head of the turbine-chamber, with a stufling-box at its center to embrace the vertical shaft and. an annular flange 68 in proximity to the -upper side of the wheel just within the bucket-segments and also provided with openings 31 to permit access to the guide-blocks, separator-block and turbinebuckets; aring-casing 1 flanged at its upper and lower side to fit onto the casing 2, with means for elevating the saine to make the said skeleton casing 2 accessible; a casing 4 resting on top of said casing 2 to form a base for supporting a dynamo or other machinery above; and suitable adjustable bearings at the center of said shaft, all coacting for the purpose specified..

9.- In an elastic-fluid turbine-engine, the

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-secured to the webs of said upper head of the combination of a suitable base; a vertical vided with an inlet-chamber 35, with a suit-` able inlet-passage 63 therefrom to the nozzle; a governing-valve for controlling the said nozzle in the exhaust-chamber in said base; a lower head 10 for the turbine-wheel casing, supported on' a iiange 56 thereof and provided with a suitable stuffing-box at-the center to embrace the said vertical shaft', and provided with an annular flange 56 eX- tending up into proximity with the lower surface of the lower turbine-wheel adjacent to thebucket-sections; turbine-Wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other; oppositelyfaced bucket segments suitably turbine-wheels guide-passage blocks 5 and 7 with portions projecting from said oppositely-faced buckets, and a s'pacerfblock, 6 between said guidepassage blocks, the passages therethrough to deliver elastic Huid to operate the said turbine-wheels and pass through the same successively, thence to rthe exhaust; an upperskeleton casing 2 extending to form the turbine-chamber, with a stuffing-box at its center to embrace .the vertical shaft and an annular ange 68 in proximity to the up er side of the wheel 8 just within the bue {et-segments and also provided with openings 31 to permit access to the blocks, separator-blocks, 'and turbinebuckets; a ring-casing 1 flanged at itsup er and lower side to iit onto the casing 2, with means for elevating the same to makesaid shaft .arranged ce ported in` a suitable step-bearing, the base 3 A of said shaft,

cured to the webs of skeleton casing 2 accessible a casing 4 resting on top of said casing 2 to form a base for supporting a dynamo or other machinery above; and suitable adjustable bearings-at the center all coacting substantially as de-v scribed and for the purpose specified.

y 10. In an elastic-fluid turbine-engine, the combination of a suitable base; a vertical ntrally therein and supsupporting said bearing and being provided with an inlet-chamber 35, with a suitable inlet-passage 63 therefrom to the nozzle; la governing-valve for controlling the said nozzle in the exhaust-chamber in said casing; a lower head 10 for the turbine-wheel casing, supported on a iiange 56 thereofand provided with a suitable stuffing-box at the center to embrace the said vertical shaft, and provided with an annular iiange extend- 1ng up into proximity with the lower surface of the lower turbine-Wheel adjacent to the bucket-sections; turbine-Wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other; oppositelyl-faced bucket-segments suitably se' said turbine-wheels 5 guide-blocks arranged to deliver steam successively to the said oppositely-faced buckets an upper skeleton casing 2 extending to form the upper head of theturbine-chamber, with a stuffing-box at its center to embrace the vertical shaft and an annular flange 68 in pro 'mity to the upper side of the wheel 8 jus within the bucket-segments and also provided With openings 31 to permit access to the guide-blocks, separator-blocks and turbine-buckets;4 a ring-casing 1 flanged at its upper and lower side to iit onto the casing 2, with means for elevating the same to make the said skeleton casing' 2 accessible; a casing 4 resting on top of said casing 2 to form a base for supportin a dynamo or other machinery above; an suitable adjustable bearings at the center of said shaft, all coacting substantially as described and for the purpose specified. j

11. In an elastic-Huid turbine-engine, the combination of a shaft arranged centrally therein and supported in a suitable step-bearing, the base 3 supporting said bearin and being provided with an annular inlet-chamber 35, with suitsuitable base; a vertical l able inlet-passages 63 therefrom tothe different nozzle-sections; governing-valves 60 and 61 for controlling the said nozzles in the exhaust-chamber in said base a lower head 1() for the turbine-wheel casing, supported on a flange 56 thereof and provided with a suitable stuffing-box at the center to embrace the said vertical shaft, and provided with an annular flange 55 extending u into proximity with the lower surface of t e lower turbine-*wheel adjacent to the bucket-sections; turbine-wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other oppositely-faced bucketsegments suitably secured to the webs of said turbine-wheels; guide-passage blocks 5 and 7 extending inwardly between the oppositely-faced bucket-segments on each Wheel with a spacer-block 6 between the same, containing passages 36, 37, 38, 39 and 40, delivering into the buckets 41 of 'the lower bucket-segments of the upper wheel 8 and a passage 42 in the guide-block 5 leading from the inner side of the said bucket 41 to the inner side of the` said bucket 41', and thence through the said passage 42 from the outer side of the buckets 41 to the outer side exit-passa e 1 in said -guide-blocky 5 in advance of t e inlet-passages 39 connecting to a passage '43 through the spacer-block 6, and a n'ozzle 44 delivering i block 7 to the outer side of the buckets 45, and a passage 46 through the said guideblock 7 to the inner side of the upper bucket 47, and a passage 48 to connect the'outer periphery of the said upper buckets 47 to the exhaust chamber 50, and suitable adjust'- able bearings at the center ,of said shaft, all

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thence through guidev -able inlet-passages 63 therefrom to the dif" ferent nozzle-sections;y governing-valves 60 and 6l for controlling. the said nozzles in the exhaust-chamber in said base; a lower head 10 forthe turbine-wheel casing, supported on a fia-nge 56 thereof and provided with a suitable stuffing-box at the center to embrace Athe said vertical shaft, and providedwith an annular dange 55 extending up into proximity with the lower surface of the lowerturbine-wheel adj acent to the bucket-sections; turbine-wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other, oppositely-faced bucketvsegments suitably secured tothe webs of said turbine-wheels3 guide-passageblocks 5 and 7 with portions projecting from said oppositely-faced buckets, and a spacer-block 6 between said guide-passage blocks, 4the pas-. sages therethrough to deliver elastic fluid to operate ythe said turbine-wheels v and pass throughthe same successively, thence to the exhaust; and suitable adjustable bearings at the center of said shaft, all coacting substan- 1tially as described and for the purpose specied. i 13. In an elastic-fluid turbine-engine, the combination of a suitable base; a vertical shaft arranged centrally therein and` supported in a suitable step-bearing, the ,base 3 supporting saidbearing andbeing provided with an annular outlet-chamber 35, lwith suitable inlet-passages 63 therefrom to the different nozzle-sections; governingfvalves 60 and 6.1 for controlling the said nozzles in the exhaust-chamber in said base; a lower head 10 for the turbine-wheel casing, supported on a flange 56 thereof and provided with a suitable stuffing-box at the center to embrace the said vertical shaft, and provided with an annular flange 55 extending up into proximity with the lower surface of the lower turbine-wheel adjacent to the bucket-V sections; turbine-wheels 8 andQ secured to the said vertical shaft by suitable hubs and arrangedone above the other; oppositelyfaced bucket-segments suitably secured to the webs of said turbine wheels; guideblocks arranged to deliver steam i succes'- sively to the said oppositely-faced buckets; and suitable adjustable bearings at the center of said shaft, all coacting substantially as described and for the purpose specified.

14. in an elastic-fluid turbine-engine, the combination of a suitable base; a vertical shaft arranged centrally therein and supported in a suitable step-bearing, the base 3 j opposite'ly-faced bucket-se assess supporting said'belil'ig and being provided with an inlet-chamber 357 with a suitable inlet-passage-63, `therefifom to the nozzle; a governing-valve for controlling the said nozzle inthe exhaustechamber in said base; a lower head l0 for the turbine-wheel casing, supported oir-a .-f1ange56 thereofand provided with a suitable stufHng-box at the center to embrace the saidvertical shaft, and provided with ari-annular ange 55 extending up into proximitylwith the lower surface of the-lower turbine -wheel adjacent to the bucket-sections; turbine-wheels 8 and 9 secured Vto the said vertical shaft by suitable hubs and arranged one above the other; ments suitably secured to the Webs of sai turbine-wheels; guide-,passage blocks 5 and 7 extending inwardly between the oppositely-faced bucketsegments on each Wheel with a spacer-block 6 between the same, containing passages 36, 37, 38, 39 and 40, delivering into the buckets 41 of the lower bucket-segments ofthe upper wheel 8 and a passage 42 in the guide-block 5 leading from the inner side of the said bucket 41 to the inner side of the said bucket 417, and thence through the said guide-.block 5 to a guidespassage 42 from the outer side of buckets 41 tothe outer side of the bucket 4l, and an exit-passage l in said guide-block 5 in advance of the inlet-passages 39 connecting to--a passage 43 through the spacer-y to the outer side ysaid shaft, all coactiig substantially as described and for the purpose specified.

15. In an elastic-iuid turbine-engine, the combinationy of a suitable base; a vertical shaft arrangedV centrally therein and supported in a suitable step-bearing,` the base 3 supporting said bearing and being provided with an inlet-chainber 35, with a suitable inlet-passage 63 therefrom to the nozzle; a governing-valve for controlling the-said nozzle in the exhaust-chamber in said base; a lower head i() for the turbine-wheel casing` su ported on a fiange 56 thereof and provi ed\with a suitable'stufiing-box at the center to embrace the said vertical shaft, and

`provided with an annulargfiange 55 extending up into proximity with the lower surface of the' lower turbine-wheel adjacent to ther bucket-sections; turbine-wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other; oppositely-faced bucket segments suitably secured to the Webs of said turbine-wheels; guide-passage blocks 6 and 7 with portions proj ec ting from said oppositely-faeed buckets,

iblock 6, and a .nozzle-passage 4e" delivering IOO and a spacer-block 6a between said guidepassage blocks, the pas'sages therethrough to deliver elastic fluid to operate the said turbine-wheels and pass through the same successively, thence to the exhaust; and suit-v able adjustable bearings at the center of said shaft, all coacting substantially as described and for the purpose specified.

16. In an elastic-Huid turbine-engine, the combination of a suitable base; a vertical shaft arranged centrally therein and supported in a suitable step-bearing, the base 3 supporting said bearing and being provided with an inlet-chamber 35, with a suitable inlet-passage 63 therefrom tothe nozzle; a

governing-valve for controlling the saidnoz-n zle in the exhaust-chamber in said base; a lower head 10 for 'the turbine-wheel casing supported on a flange 5 6 thereof and provided with a suitable .stuffing-box at the centerto embrace the said vertical shaft, and provided with an annular'flange extending up into proximity with the lower surface of the lower turbine-wheel adjacent to the bucket-sections; turbine-wheels 8 and 9 secured to the said vertical shaft by suitable hubs and arranged one above the other; oppositelyfaced bucket-segments suitably secured to the webs of said turbine-wheels guide-blocks arranged to deliver steam successively' to the said oppositely-faced buckets; and suitable adjustable bearings at the center of said shaft, all coacting substantially as described and for the purpose specified.

17. In an elastic-fluid turbine, the .combination of a base with an annular supplypassage around the same, with suitablecontrolling-valves and an exhaust-passage leading therefrom; a head for the said-base, with a iange extending into proximity to the bucket-segments of the bottom turbinewheel; a step-bearing supported on a suitable shelf at the center with openings through the side of the base to make the same accessible; blocks containing nozzle and guide passages,supported by said base; .and a vertical shaft with turbine-wheels carried by the said base, coacting for the purpose specified.

18.. In an elastic-fluid turbine, the combination -of a base with an annular supplypassage around the same, with suitable controlling-valves and an exhaust-passage leading therefrom; a step-bearing sup orted on a suitable shelf at the center, wit openings through the side of the base to make the same accessible; blocks containing nozzle and guide passages, supported by said base; and a vertical shaft with turbine-wheels carried b said base, coactingfor the purpose specifie 19. In an elastic-fluid turbine, the combination of a base with an annular supplypassage around the same, with suitable controlling-valves and an exhaust-passage leading therefrom; a step-bearing supported on a suitable shelf at the center .with openings through the-side of the base to make the same accessible; blocks containing guide-passages,

supported by said base; and a verticalshaft with turbine-wheels carried bythe said base, coacting for the purpose specified. V

20. In an elastic-huid turbine-engine, the

combination of a suitable base, supportingblocks with guide-passages therein and inletpassages; a vertical shaft 'with anumber of horizontal turbine-wheels thereon carrying oppositely-faced bucket-sectionssecured to the periphery of the webs of said wheels; nozzle and guide passage blocks projecting between the buckets on said Wheels; a

spacer-block between the same, containing appropriate passages leading first to the upper set of turbine-buckets and thence delivering downwardly; a suitable casing surrounding the said guide-passage blocks and v shaft to serve as a truss or brace for the said turbine-Wheel, as specified. A

22. Ina turbine-engine, the combination with a suitable casing, of a vertical shaft; Aa horizontally-arranged urbine-wheel therein, with nozzle and guide passage blocks extendroo ing to the same; and an annular ange ex- A tending -into proximity with the said turbinewheel on its under side toward its periphery,

for the purpose specified.

23. In an elastic-fluid turbine, thecom-'I bination of a suitable base having inlet-passages therein; nozzle and guide-passage blocks with a separator-block supported on said base with passa es therethrough; and turbine-wheels with uckets at their peri heries facing each other from opposite si es thereof and embracing the said nozzle and guide passage blocks, 'as specified. v

24. In an elastic-huid turbine-engine, the lcombination of a series of wheels with oppositely-faced buckets secured to the peripheries; lblocks'with nozzle and guide passages extending into and between the said buckets of each wheel; and intermediate separatorblocks, with passages'connecting from one set of buckets to the inlet of the next set of buckets, whereby the engine is compounded and the expansion of the expansive fluid is utilized.

In witness whereof I have hereunto set my .l

hand and seal in the presence'of two witnesses.

CHARLES W. DAKE.' [L. s] Witnesses:

ADELAIDE J. ADAMS, Oris A..EARL.

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